KR20120071436A - Method for controling and managing of network based equipment - Google Patents

Abstract

PURPOSE: A network based apparatus control and management method is provided to enable a user to operate network based apparatuses in a low process performance by simplifying a protocol structure. CONSTITUTION: A manager models EE(Excellent Education) platforms and a plurality of agents to an MIB(Management Information Base)(S610). The manager transmits a message for establishing remote control, monitoring, or operation to one of the agents. The agents transmit response messages for the message to establish the remote control, the monitoring, or the operation to the manager(S620).

Description

How to Control and Manage Network-Based Devices {METHOD FOR CONTROLING AND MANAGING OF NETWORK BASED EQUIPMENT}

The present invention relates to network-based devices, and more particularly, to a method for controlling and managing network-based devices.

Representative protocols for remotely controlling and managing network-based equipment connected to an Internet Protocol (IP) -based network include Customer premises equipment WAN Management Protocol (TR-069) and SNMP (Simple Network). Management Protocol). Customer premises equipment WAN Management Protocol (TR-069) is standardized by the BroadBand Forum (BBF), and Simple Network Management Protocol (SNMP) is standardized by the Internet Engineering Task Force (IETF).

First, CWMP is a single auto-configuration server (ACS) to manage and control a number of customer premises equipment (CPE), auto-configuration as well as status / performance monitoring of CPEs ) And dynamic service provisioning. The CWMP protocol is a Transport Layer Security (TLS) protocol that is responsible for security over Transmission Control Protocol / Internet Protocol (TCP / IP), HyperText Transfer Protocol (HTTP), RPC (RPC), which is used to deliver Simple Object Access Protocol (SOAP) messages. Stacking a set of Simple Object Access Protocol (SOAP), an eXtensible Markup Language (XML) -based message exchange protocol used to deliver remote call procedures, and RPC methods for exchanging messages between CPEs and ACSs. ) Has a structure.

Subsequently, SNMP is a protocol for managing and monitoring network equipment, which allows a network administrator to manage network performance and find and correct network problems. SNMP is composed of SNMP agent (agen) which is installed in the system to be managed and collects the necessary information and SNMP manager which requests the information necessary for the system where the SNMP agent is installed.

On the other hand, in a small network network, one administrator controls a plurality of devices, for example, a protocol for controlling and managing educational network platforms installed in each classroom in the school network used for educational services in the school, as described above Compared with CWMP and SNMP, a protocol that provides a platform initialization process while having a simple protocol structure is required.

The technical problem to be achieved by the present invention is that a single PC in the network network to remotely control, manage and set up a plurality of network devices.

According to an aspect of the present invention, a method of controlling and managing an EE platform using an EE platform protocol in a network includes a manager managing information on the EE platform and a plurality of agents. Modeled as a Management Information Base (MIB), the manager sends a message to one of the plurality of agents for control, monitoring or setting of an operation, the plurality of agents ( a response message to a message for setting an operation) is transmitted to the manager, wherein the manager registers the plurality of agents, uploads the MIB, sets an operation, and sets the EE; Initialize the platform.

According to the present invention, the protocol structure is simple to operate at low processor performance and to provide a platform initialization process.

1 shows a network structure to which a protocol can be applied.
2 shows the structure of a header included in a protocol EPMP and an EPMP packet.
3 shows a configuration of message content according to each message type.
4 illustrates an initialization process of an EE platform according to the present invention.
5 shows a message processing structure of an EE platform agent.
6 is a flowchart illustrating a method for remotely controlling and managing a network based device in a network according to the present invention.

In order to facilitate the description of the configuration of the present invention will be described through the embodiment along with the drawings. Hereinafter, EE platform (Excellent Education Platform) refers to the network equipment installed in each classroom to provide a variety of services used for education in the school, and performs functions required for wired and wireless services, various devices control of the classroom, etc. .

Hereinafter, the control terminal is described as an EE platform, a protocol as an EPMP (EE Platform Management Protocol), a manager as an EE platform manager, and an agent as an EE platform agent. only. Protocols, control terminals, managers and agents are not limited thereto.

1 shows a network structure to which a protocol can be applied. In particular, it may be a Gigabit-capable Passive Optical Network (GPON) control network for use in school.

Referring to FIG. 1, EPMP is used to control and monitor the status of the EE platform installed in each classroom, and the EE platform manager uses a Gigabit Ethernet (GbE) interface to an optical line terminal (OLT). The EE platform agent is connected to the Optical Network Terminal (ONT) via a GbE interface. In the following, each component is described in detail.

The EE platform manager controls and manages the EE platform in the classroom. It communicates with the EE platform agent and manages it using a Management Information Base (MIB) modeling the EE platform in software. The EE platform manager's functions include EE platform initialization, EE platform control and service provision.

The EE platform agent operates on the EE platform and receives and interprets EPMP messages from the EE platform manager and performs the corresponding operations. Each EE platform agent has a MIB and a set response / get response / upload response for set / get / upload messages received from the EE platform manager. upload response)

FIG. 2 shows the structure of a header included in protocol EPMP and EPMP packet. The size of each field in the head can be changed by implementation.

Referring to FIG. 2, the EPMP uses a MIB that defines information necessary for controlling the EE platform. The EE platform itself and the configuration devices requiring control are modeled as MIBs, and each attribute of the MIB has information necessary for it. The EE platform manager can read or change the values of each attribute in the MIB to manage and configure the EE platform.

Here, the case of reading the attribute value is called 'get' and the case of changing the attribute value is called 'set'. If the attribute in "set" requires hardware control, the EE platform agent changes the device's configuration. The types of EPMP messages used in EPMP are get / set / get response / set response / upload / upload response / periodic upload. There are 7 types of EPMP messages.

Message type Usage get Used by the EE platform manager to obtain specific MIB information for the EE platform agent. The EE platform agent that receives the get message must respond with a get response message. set Used by the EE Platform Manager to set settings for specific MIBs of the EE Platform Agent. The EE platform agent that receives the set message must respond with a set response message. get response The EE platform agent receiving the get message MUST send a get response to the EE platform manager. If the result of the get message is not success, the number of retransmissions of the get message is not standardized. set response The EE platform agent receiving the set message MUST send a set response to the EE platform manager. upload The process of getting all the attributes of a MIB. Used by the EE Platform Manager to import MIB information from the EE platform at one time. upload response The EE platform that receives the upload message must send the upload response message. periodic upload Used to upload MIB regularly.

Table 2 relates to the fields included in the header of the EPMP packet.

field meaning Message Sequence ID ID (identifier) to distinguish each message, used to increase the robustness of sending and receiving, increasing each time a message is sent.
For example, the value of this field in a get response message that responds to a get message must be the same value as the get message received. Protocol Version Protocol version information Platform ID Use an ASCII code value as a unique identifier to identify the control.
For example, if EPA1, the ASCII values 'E' = 0x45, 'P' = 0x50, 'A' = 0x41, and '1' = 0x31 are entered in this order. Message Type Identifies the type of message.
0: Get, 1: Get response, 2: Set, 3: Set response, 4: Upload, 5: Upload response, 6: Periodic upload MIB ID Identifier containing MIB information supported by the EE platform. It consists of 16 bits and the upper 8 bits are used to distinguish many same MIBs, and the lower 8 bits are the values according to the standard of Table 4. Message Contents Size The size of the message in bytes. For example, if this value is 1, the message contents are 1 byte in size.

3 shows a configuration of message contents according to each message type. Table 3 below is for each field.

Mask A bit-mapped value of the attribute of the MIB to be obtained through the get message.
For example, the mask value for getting the first attribute value of a specific MIB is 1000 0000 0000 0000 (0x8000). Result Response to a message sent by the EE platform manager.
All response messages contain this field, and success, device busy, unknown MIB or attribute, device failure, and message sequence ID mismatch error can be defined. Attribute values Attribute value to send

Table 4 shows the structure of the modeled MIB.

MIB ID (get) The value that distinguishes the MIB. Each MIB has a unique value. Attribute 1 (get, set, get / set) Attribute to control Attribute 2 (get, set, get / set) Attribute to control … … Attribute n (get, set, get / set) Attribute to control

Referring to Table 4, the MIB ID is an identifier of the MIB modeling the components of the network device to be controlled and managed. The EE platform itself and the component devices that require control are modeled as MIBs, and each attribute of the MIB has the necessary information. The EE platform manager can read or change the values of each attribute in the MIB to manage and configure the EE platform. At this time, the MIB ID is an identifier for distinguishing multiple MIBs, and the attributes that can be controlled and managed by the manager are only when get operation is possible, only when set operation is possible, or when both get / set are possible. Can have characteristics.

4 illustrates an initialization process of an EE platform according to the present invention.

Referring to FIG. 4, the EE platform agent registers with the EE platform manager (S410). Also called a discovery process. The EE platform, which was in the initial state (initial state) initialized to the initial system, performs the discovery process in the Bring-up stat. When the discovery process is completed, the EE platform sends the MIB upload state (MIB upload). state).

Subsequently, MIB information of the newly registered EE platform is obtained (S420). Also referred to as MIB upload process. The EE platform manager synchronizes the MIB information obtained from the MIB upload process with the EE platform agent. That is, all MIB information of the registered EE platform agent is managed. In the EE platform, the MIB upload process is performed in the MIB upload state, and when the MIB upload process is completed, the EE platform transitions to the in-service state.

Finally, operations such as get, set, and upload to a specific MIB are performed (S430). Also called an operation process. The operation process is performed in in-service state, after which the EE platform remains in-service state until it is initialized.

5 shows a message processing structure of an EE platform agent.

Referring to FIG. 5, the EE platform agent includes a platform ID filtering unit 501, a message processing unit 502, a MIB management unit 503, and a device control unit 504. The functions of each processing block are shown in Table 5 below. .

Processing block function Platform ID Filtering Section For every message received, the Message Sequence ID matches and the platform ID matches. Message processing unit The message interpreter interprets the fields of the received message and performs an action.
The message transmitter sends a response message to the EE platform manager. MIB Management Department Manages the attribute values of the MIB managed by the EE platform. Device control unit Read / write functions related to hardware (HW) of EE platform.

Referring to Table 5, all EPMP messages are transmitted and received based on the destination IP of UDP, but the EE platform agent basically checks whether the message sequence ID matches for all received messages. Check if the platform ID is correct, and if there is no error, proceed to the message processing unit. The message processor may be divided into a message interpreter that is in charge of interpreting a message and a message transmitter that transmits a message. The message interpreter interprets the fields of the received message to perform an operation, and the message transmitter transmits a response message to the EE platform manager. Via the message processing unit, the MIB management unit and the device control unit.

6 is a flowchart illustrating a method for remotely controlling and managing a network based device in a network according to the present invention.

6 is a protocol for controlling and managing a network-based device remotely from a network connected to an IP network to remotely control, monitor, and set operations for a plurality of agent modules and a plurality of agents installed in a control terminal. It includes a manager.

A manager models the EE platform and a plurality of agents as a Management Information Base (MIB) (S610). In order to send and receive messages based on UDP, the MIB modeling each control part of the agent is used for the manager to control and manage the agent.

The manager sends a message for remote control, monitoring or setting up an operation to one of the plurality of agents, the plurality of agents responding to the message for setting up the remote control, monitoring or operation The message is transmitted to the manager to manage the MIB (S620). The manager sends a message type such as get / set / get response / set response / upload / upload response / periodic upload to read and write each attribute of the agent's MIB, and the manager uploads the discovery process and MIB to initialize the EE platform. You can use steps in the process, operation process.

The agent may transition to the initial state, the bring-up state, the MIB upload state, and the in-service state according to the step of communicating with the manager, and the agent may be a platform ID filtering unit, a message processing unit, a MIB management unit, and a device control unit. It may be made of.

In the above example, the methods are described based on a flowchart as a series of steps or blocks, but the present invention is not limited to the order of steps, and any steps may occur in a different order or simultaneously from other steps as described above. . In addition, those skilled in the art will appreciate that the steps shown in the flowcharts are not exclusive and that other steps may be included or one or more steps in the flowcharts may be deleted without affecting the scope of the present invention.

The above-described embodiments include examples of various aspects. While it is not possible to describe every possible combination for expressing various aspects, one of ordinary skill in the art will recognize that other combinations are possible. Accordingly, it is intended that the invention include all alternatives, modifications and variations that fall within the scope of the following claims.

Claims (1)

In the method of controlling and managing the EE platform using the EE platform protocol (Excellent Education Platform Protocol) in the network,
A manager models the EE platform and a plurality of agents as a Management Information Base (MIB),
The manager sends a message for setting of control, monitoring or operation to one of the plurality of agents, and the plurality of agents sends a response message to the message for setting of control, monitoring or operation. To the manager,
And the manager registers the plurality of agents, uploads the MIB, and sets up an operation to initialize the EE platform.

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